Buffer overflow in Atftp Project
CVE-2021-41054
tftpd_file.c in atftp through 0.7.4 has a buffer overflow because buffer-size handling does not properly consider the combination of data, OACK, and other options.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.023 (82.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.023 · change: -0.003
Affected products
- Atftp Project
- Debian Linux — versions 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- sourceforge.net/p/atftp/code/ci/d255bf90834fb45be52decf9bc0b4fb46c90f205/ (Patch, Third Party Advisory)
- github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-41054 (Exploit, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/11/msg00014.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-41054?
- CVE-2021-41054 is a high-severity vulnerability in Atftp Project, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2021-09-13.
- How severe is CVE-2021-41054?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-41054 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.